Impedance matched reduced cross talk electrical connector system

摘要

There is provided an apparatus for reducing pair to pair cross talk which arises in electrical connectors due to closely spaced elongated parallel contacts while maintaining proper longitudinal balance and characteristic impedance of each pair. The cross talk which occurs within the connector is reduced by modifying certain circuit paths either inside or outside of the connector so that each conductor of a first pair which is parallel to and cross talking with an adjacent conductor of a second pair in the connector is relocated adjacent and parallel to the other conductor of the second pair over a predetermined distance. A substantial amount of incident reflected signal, due to impedance mismatch, is reduced by the addition of an additional circuit path, which carries the same signal as one of the relocated conductors of the first pair, at a position adjacent to the other conductor. It is preferred that the relocation of the circuit paths and the additional circuit path occur on a circuit board which is attached to the connector.